# US 2014/0152324 A1 · Transcapacitive sensor devices with seams > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152324 A1 - Document ID: US20140152324A1 - Status: Published application - Kind: A1 - Application number: 14/085,606 - Filed: 2013-11-20 - Published: 2014-06-05 - Earliest claimed: 2009-12-18 - Assignees: Synaptics Incorporated - Applicants: Synaptics Incorporated - Inventors: Adam SCHWARTZ; Kirk HARGREAVES; Joseph Kurth REYNOLDS; Richard R. SCHEDIWY - Web page: https://patentgrep.com/patent/US20140152324A1 ## CPC - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G01R 27/2605: {Measuring capacitance (capacitive sensors G01D5/24)} - G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) ## Abstract A processing system for a transcapacitive sensing device comprises a plurality of sensor electrodes sectioned by a seam, a first sensor electrode integrated circuit, and a second sensor electrode integrated circuit. The plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes. The first sensor electrode integrated circuit is communicatively coupled to a first subset of the plurality of sensor electrodes. The second sensor electrode integrated circuit is communicatively coupled to a second subset of the plurality of sensor electrodes. The first sensor electrode integrated circuit and the second sensor electrode integrated circuit are configured to operate the plurality of sensor electrodes in synchrony to transmit with the plurality of transmitter electrodes a set of transmitter signals and receive with the plurality of receiver electrodes a set of responses corresponding to the set of transmitter signals. ## Claims ### Claim 1 A processing system for a transcapacitive sensing device comprising a plurality of sensor electrodes sectioned by a seam, wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes, said processing system comprising: a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of said plurality of sensor electrodes; and a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said first SEIC and said second SEIC are configured to operate said plurality of sensor electrodes in synchrony to transmit with said plurality of transmitter electrodes a set of transmitter signals and receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals. ### Claim 2 (depends on 1) The processing system of claim 1, further comprising: a central controller communicatively coupled to said first SEIC and said second SEIC, wherein said central controller is configured to provide a synchronization signal to said first SEIC and said second SEIC. ### Claim 3 (depends on 2) The processing system of claim 2, wherein said synchronization signal initiates a scanning of a new frame. ### Claim 4 (depends on 2) The processing system of claim 2, wherein said central controller is further configured to: receive, from said first SEIC and said second SEIC, information based on said set of responses; and provide an image representative of a compilation said information. ### Claim 5 (depends on 2) The processing system of claim 2, wherein said central controller is further configured to: receive, from said first SEIC and said second SEIC, information based on said set of responses; and provide data about input in a sensing region of said transcapacitive sensing device using said information. ### Claim 6 (depends on 1) The processing system of claim 1, wherein said first SEIC is further configured to provide a clock signal to said second SEIC. ### Claim 7 (depends on 1) The processing system of claim 1, wherein said first SEIC comprises a first receiver circuit configured to provide a first value proportional to a first response of said set of responses, and wherein said second SEIC comprises a second receiver circuit configured to provide a second value proportional to a second response of said set of responses, said processing system further comprising: memory configured for storing calibration information, said calibration information configured for adjusting said first value to produce a first adjusted value, wherein a first proportionality of said first adjusted value to said first response is substantially equal to a second proportionality of said second value or an adjusted second value to said second response. ### Claim 8 (depends on 1) The processing system of claim 1, wherein said seam is an ohmic seam. ### Claim 9 (depends on 1) The processing system of claim 1, further comprising: a coding component configured to uniquely encode transmitter signals such that at least two transmitter signals of said set of transmitter signals are uniquely encoded with respect to each other, wherein said processing system transmits said at least two transmitter signals concurrently. ### Claim 10 (depends on 1) The processing system of claim 1, wherein said first SEIC and said second SEIC are configured to operate said plurality of sensor electrodes in synchrony by: concurrently transmitting four uniquely coded transmitter signals with a first set of four transmitter electrodes of said plurality of transmitter electrodes, and concurrently transmitting said four uniquely coded transmitter signals with a second set of four transmitter electrodes of said plurality of transmitter electrodes. ### Claim 11 (depends on 1) The processing system of claim 1, wherein said first SEIC and said second SEIC are further configured to: suspend transmissions with said plurality of transmitter electrodes during a non-transmitting period, and detect interference during said non-transmitting period. ### Claim 12 A method of operating a transcapacitive sensing device comprising: providing, with a central controller, a synchronization signal to a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of a plurality of sensor electrodes and a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said plurality of sensor electrodes is sectioned by a seam, and wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes; and operating said first SEIC and said second SEIC in synchrony with said synchronization signal to transmit with said plurality of transmitter electrodes a set of transmitter signals and to receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals. ### Claim 13 (depends on 12) The method of claim 12, further comprising: receiving, with said central controller, information based on said set of responses; and providing, by said central controller, data about input in a sensing region of said transcapacitive sensing device using said information. ### Claim 14 (depends on 12) The method of claim 12, further comprising: storing calibration information; producing a first adjusted value by adjusting according to said calibration information a first value proportional to a first response received by the central controller from said first SEIC; and producing a second adjusted value by adjusting according to said calibration information a second value proportional to a second response received by the central controller from said second SEIC, wherein a first proportionality of said first adjusted value to said first response is substantially equal to a second proportionality of said second adjusted value to said second response. ### Claim 15 (depends on 12) The method of claim 12, wherein said operating said first SEIC and said second SEIC in synchrony to transmit with said plurality of transmitter electrodes a set of transmitter signals comprises: concurrently transmitting uniquely coded transmitter signals with a first subset of transmitter electrodes of said plurality of transmitter electrodes during a first time period, and concurrently transmitting said uniquely coded transmitter signals with a second subset of transmitter electrodes of said plurality of transmitter electrodes during second time period. ### Claim 16 (depends on 12) The method of claim 12, further comprising: detecting interference during a non-transmitting period. ### Claim 17 A transcapacitive sensing device comprising: a plurality of sensor electrodes sectioned by a seam, wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes; and a processing system comprising: a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of said plurality of sensor electrodes; and a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said first SEIC and said second SEIC are configured to operate said plurality of sensor electrodes in synchrony to transmit with said plurality of transmitter electrodes a set of transmitter signals and receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals. ### Claim 18 (depends on 17) The transcapacitive sensing device of claim 17, wherein said processing system further comprises: a central controller communicatively coupled to said first SEIC and said second SEIC, wherein said central controller is configured to: provide a synchronization signal to enable said first SEIC and said second SEIC to operate said plurality of sensor electrodes in synchrony; receive, from said first SEIC and said second SEIC, information based on said set of responses; and provide an image representative of a compilation of said information. ### Claim 19 (depends on 17) The transcapacitive sensing device of claim 17, wherein said processing system further comprises: a coding component configured to uniquely encode at least two transmitter signals of said set of transmitter signals, wherein said processing system transmits said at least two transmitter signals concurrently with at least two of said plurality of transmitter electrodes. ### Claim 20 (depends on 17) The transcapacitive sensing device of claim 17, wherein said first SEIC and said second SEIC are further configured to: suspend transmissions with said plurality of transmitter electrodes during a non-transmitting period.